Brake bell dimensions please

[Bailer twine]

Hi can anybody help me out with the dimentions of the brake bell please
I am after the total height of the bell ( distance between a and b in the photo )
Thanks in advance guys

[Bailer twine]

Cheers Ken
Helps loads, just to confirm,that was from the rotor to the face were the wheel bolt too ?
Cheers Nik

Edited by Bailer twine on Sunday 1st February 17:42

[Bailer twine]

Cheers Ken
That's spot on, now I can get some bells machined up
Thanks Nik